ไวทย์รุ่งโรจน์ ศ. ., & คุปตัษเฐียร ณ. (2013). Productivity Improvement of Electronics Part by Using DMAIC Technique A Case Study of Printed Circuit Board Assembly Manufacturing. Journal of Engineering, RMUTT, 1, 23–36. Retrieved from https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242089